Window fastener



FIG. 1 is a top-left front isometric view of a window fastener;

FIG. 2 is a top view of the window fastener of FIG. 1;

FIG. 3 is a top-right front isometric view of the window fastener ofFIG. 1;

FIG. 4 is a top-right rear isometric view of the window fastener of FIG.1;

FIG. 5 is a top-left rear isometric view of the window fastener of FIG.1;

FIG. 6 is a left view of the window fastener of FIG. 1;

FIG. 7 is a front view of the window fastener of FIG. 1;

FIG. 8 is a right view of the window fastener of FIG. 1;

FIG. 9 is a rear view of the window fastener of FIG. 1;

FIG. 10 is a bottom-left front isometric view of the window fastener ofFIG. 1;

FIG. 11 is a bottom view of the window fastener of FIG. 1;

FIG. 12 is a bottom-right rear isometric view of the window fastener ofFIG. 1;

FIG. 13 is a bottom-right front isometric view of the window fastener ofFIG. 1; and,

FIG. 14 is a bottom-left rear isometric view of the window fastener ofFIG. 1.

CLAIM The ornamental design for a window fastener, as shown anddescribed.